Advertisement sign



Nov. 25, 1930. T. LAMB ET AL ADVERTISEMENT SIGN Filed Oct. 5, 1929 2Sheets-Sheei 1 Fig. 4.

Fig. 2.

Jae/d 560 73.

HTTORNE Y T. LAMB ET AL ADVERTISEMENT SIGN Nov. 25, 1930.

Filed Oct. 5, 1929 2 Sheets-Sheet 2 IN \(E/V TORS 110mg lamb, M/l/anReid 86a I'P Y Xu HTTORNEV bands. Obviously the positions of the gridand sign may be reversed if desired. It is preferable with this form toprovide a proscenium 7 in order to cut off the surrounding light fromthe vertical member of the combination.

Fig. 6 shows a device for adapting the in vention to an existing reflexsign. This device comprises a casing 8 which is adapted to fit over thetop of the reflex sign, and rest thereon by means of a flange 9. Theupper portion of the casing 8 has a groove formed by two flanges 10, 11to receive either the sign proper or a grid. To apply this device, theexisting sign proper is lined according to requirements as shown in Fig.4;, and inserted between the flanges 10, 11,. while a grid 1s placed 1nthe positlon in the sign casing originally occupied by its sign proper.

Or, the lined sign proper is returned to its original position and thegrid inserted betweenthe flanges 10, 11. The device may be secured inposition by nuts and bolts as indicated diagrammatically at 12, 13.Alternatively, the sign proper may be left unlined and two spaced gridsarranged in the casing 8 which may be secured to the top of the sign asshown, or it may be secured to the front of the sign. If desired thedouble grid may be manufactured and sold in strip form for placing infront of any kind of sign mind of the observer, the lines being less.

obvious to the eye.

According to further arrangements, the one grid may be formed by drawinglines on the face of the mirror of the sign, or by producing bands onlyof silvering on the back of the mirror. With this form the second gridmay be obtained by drawing lines on the front of the mirror.

In the form shown in Fig. 7, 14 is a strip of glass having a lined sign'15 formed at its rear, while the front side 16 of the glass is linedwith parallel lines. This example shows the advantage of incorporatingone grid with the sign proper, for different portions of the sign may begiven different effects, by drawing thelines on the letters as shown:in. the S the resulting shadow band takes a sinuous course along theletter; in the I it takes an up or down course; and in the G a curvedcourse. Other examples of the varied eflects obtainable with this formof grid consist in drawing broken vertical lines on the sign with thebreaks of adjacent lines staggered, for example so as to give a minutecheck pattern, which with a parallel lined grid produces a sparkling orscintillating effect; drawing wavy lines made up of series of concentricsegments oppositely disposed, which with a parallel lined grid gives theeffect of spreading ripples.

Again by. using a plate of fine hamered glass having a somewhat mottledappearance, and thus giving the glass a large number of refractivepoints, for the sign base, the use of one grid only gives an animatedeffect to the sign when relative motion takes place. Again, the gridsmay consist of transparent plates with lines drawn thereon. However. itis preferred to use an open work grid where possible as there is nochance of refractive or reflective effects with such, as there is withtransparent plates such as glass plates.

It will be observed that the above static signs have been described withreference to relative motion sideways, in all of which cases thedirect-ion of the slots tends from angular to vertical. However, in thecase of oncoming relative movement, such as occurs when a signprojecting at right angles over a pavement is approached, the directionof the slots tends from angular to horizontal, the'latter giving thepure intermittent lighting effect when two similar grids are used. Acombination of sideways and oncoming sign may be obtained by arrangingthe slots or lines atan angle between horizontal and vertical, forexample derees.

According to a further form of the in vention for use with aninterchangeable letter sign, the letters are cut out in the form ofstencils withthe grid lines incorporated in the letters, the sign propercomprising a sheet of coloured translucent material, such as colouredglass. With this form the usual stencil eflect is eliminated as thelines serve to hold the stencil together and thus render the usualjoining pieces unnecessary. Alter-- natively, the letters and lines maybe formed on glass or the like so that the stencils and signs areincorporated in single members. In both the foregoing examples avertically lingld grid is preferably used as the second gri v Fig. 8shows a modification of the invention which is adapted to give lightbands in place of shadow bands. According to this form, a sign linedwith reflecting lines is formed on a mirror 17 arranged substantiallyhorizontally in a casing 18, while a grid 19 of reflecting material,such as a slotted plate of stainless steel, is arranged at a distanceabove the sign. An angled mirror 20 reflects the sign 17 and grid 19.

iii-f) In use, the light first strikes the grid 19 and sign 17, fromeach of which members it is reflected to the mirror 20-which againreflects the composite image to the observer.

The image appears as a signwith light bands which move according to themovement of the observer. Obviously the above form may be used to giveshadow bands also, by form- ;liorig Itihe sign lines and grid innon-reflecting ac i The grid or grids and/or thesign proper a may bearranged for relative movement by proper and mechanical means; forexample, a pendulum may be hingedly connected to a grid, so that as thependulum oscillated, a reciprocating movement would be imparted; to thegrid.'

Where two grids are used the point of suspension of the pendulum islocated substan tially midway between the two grids, the upper gridbeing hingedly connected to an extension of the" pendulum rod, so thatthe grids are moved in opposite directions as the pendulum oscillates.

We claim a i 1. An animated reflector sign comprising a casing, a signproper in said casing,

two laterally spaced and'stationarygrids adjacent said sign proper andan angled mir ror in said casing adapted to reflect the images of thesaid sign properand grids through an opening in said casing.

2. A sign according to claim 1, the sign grids being on the one side ofthe mirror.

3. A sign according to claim 1, wherein the sign proper is in front ofthe mirror.

4;. A sign according to claim 1, and areflecting surface behind the signproper, the sign and means for securing said casing over casing beingpositioned so that thelight first strikes the grids and sign proper andis then reflected on to the mirror.

5. A sign according to claim 1, a reflecting surface behind the signproper and reflecting surfaces on the grids, the sign casing beingpositioned so that the'light first strikes the grids and sign proper andis then reflected on to the mirror.

6. A sign attachment adapted to fit over existing sign-s, comprising anopen casing, two statlonary spaced grlds 1n said casing,

the existing sign.

In witness whereof we have signed this 7 specification. A

' THOMAS LAMB. W. REID SHARP.

